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Open Vet J ; 14(8): 1789-1793, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39308705

ABSTRACT

Background: The popularity of tortoises kept in captivity is increasing and has caused concern regarding the necessity to establish safe and straightforward anaesthesia for those reptiles. Aim: This study aimed to compare four protocols using levobupivacaine in spinal anaesthesia for the blockade of the caudal neuraxis of red-footed tortoises (Chelonoidis carbonarius). Methods: Twenty-four tortoises were randomly assigned into four groups: G1, levobupivacaine 0.75% (1.15 mg kg-1); G2, levobupivacaine 0.37% (1.15 mg kg-1); G3, levobupivacaine 0.75% (2.3 mg kg-1); and G4, levobupivacaine 0.75% (0.1 ml 5 cm-1 of straight carapace length). Tortoises were evaluated for respiratory rate, muscle relaxation, response to hindlimb or tail pinch, and cloacal reflex. Results: A 1.15 mg kg-1 dose of levobupivacaine 0.37% appears adequate for shorter procedures, whereas a 1.15 mg kg-1 dose of levobupivacaine 0.75% should be appropriate for longer procedures in red-footed tortoises. Conclusion: Our results are the first to show the effects of levobupivacaine on spinal anaesthesia in reptiles. Weight-based doses presented more intense and more homogeneous effects than carapace length-based doses in red-footed tortoises. Spinal anaesthesia of red-footed tortoises was safe and effective with any of the weight-based protocols.


Subject(s)
Anesthesia, Spinal , Anesthetics, Local , Levobupivacaine , Turtles , Animals , Levobupivacaine/administration & dosage , Levobupivacaine/pharmacology , Anesthesia, Spinal/veterinary , Anesthesia, Spinal/methods , Anesthetics, Local/pharmacology , Anesthetics, Local/administration & dosage , Male , Female
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